Castle Biosciences Inc
Castle Biosciences Inc (CSTL) Implied Volatility Current
CSTL implied volatility is 55%. IV Rank is 21%, placing current premiums in the bottom of their 52-week range.
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Tracking CSTL implied volatility helps you identify when options premiums on Castle Biosciences Inc are historically cheap or expensive, and where the best trades are hiding. Castle Biosciences Inc implied volatility reflects the market's expectation of future price movement: when CSTL IV rises, option premiums increase, creating opportunities for sellers, and when it drops, buyers can find cheaper contracts. Use our scanner to monitor Castle Biosciences Inc's implied volatility current levels in real time and filter for high-probability trades.
Implied volatility is derived from option prices using models like Black-Scholes and represents the annualized expected move of an underlying stock. For CSTL, tracking metrics like CSTL IV rank helps traders understand whether current implied volatility is historically high or low. IV rank compares today's reading against the past year's range — a high rank on CSTL signals rich premiums and potential mean-reversion, while a low rank may favor long options strategies.
Castle Biosciences, Inc., a commercial-stage diagnostics company, focuses to provide diagnostic and prognostic testing services for dermatological cancers. Its lead product is DecisionDx-Melanoma, a multi-gene expression profile (GEP) test to identify the risk of metastasis for patients diagnosed with invasive cutaneous melanoma. The company also offers DecisionDx-UM test, a proprietary GEP test that predicts the risk of metastasis for patients with uveal melanoma, a rare eye cancer; DecisionDx-SCC, a proprietary 40-gene expression profile test that uses an individual patient's tumor biology to predict individual risk of squamous cell carcinoma metastasis for patients with one or more risk factors; and DecisionDx DiffDx-Melanoma and myPath Melanoma, a proprietary GEP test to diagnose suspicious pigmented lesions.
It offers test services through physicians and their patients. The company was founded in 2007 and is headquartered in Friendswood, Texas.
Premium sellers, directional traders, and spread builders all need the same starting point: a clear read on where CSTL implied volatility sits today versus where it has been. Our scanner ranks Castle Biosciences Inc implied volatility against its historical range, surfaces extremes in CSTL IV rank, and pairs every reading with the trades that exploit it. Stop guessing whether Castle Biosciences Inc IV is rich or cheap — measure it, then act on it.
Implied Volatility
IV is compressed vs the past year - options are relatively cheap, favoring buyers.
As of September 22, 2026
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